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Issue
Korean Journal of Chemical Engineering,
Vol.31, No.8, 1413-1424, 2014
Deposition of toxic metal particles on rough nanofiltration membranes
Agboola O, Maree J, Mbaya R, Zvinowanda CM, Molelekwa GF, Jullok N, Van der Bruggen B, Volodine A, Haesendonck CV
Two nanofiltration (NF90 and Nano-Pro-3012) membranes were investigated for their capacity to remove metal ions. This study presents the effect of membrane roughness on the removal of toxic metal ions during dead end membrane filtration. Atomic force microscopy, scanning electron microscopy, WSXM software and ImageJ were used to characterize the roughness of the membranes. Gradual decrease in filtration permeate flux was observed as foulants accumulated at the interface of the membranes; filtration permeate flux varied from 20 L/m2/h to 14 L/m2/h and 11 L/m2/h to 6 L/m2/h for NF90 and Nano-Pro-3012, respectively. NF90 membrane was more prone to fouling than the Nano-Pro-3012 membrane: the percentage flux reduction was higher for NF90 (3.6%) than Nano-Pro-3012 (0.98%). The bearing ratio of the fouled NF90 exhibited a high peak of 7.09 nm than the fouled Nano-Pro-3012 with the peak of 6.8 nm.
Keywords: Particle Deposition; Flux Reduction; AFM; SEM; Roughness; Bearing Analysis
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[Cited By]
  1. Agboola O, Maree J, Mbaya R, Kolesnikov A, Sadiku R, Verliefde A, D’Haese A, Korean Journal of Chemical Engineering, 32(4), 731, 2015
  2. Javdaneh S, Mehrnia MR, Homayoonfal M, Korean Journal of Chemical Engineering, 33(11), 3184, 2016
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